Low volume concentrate spraying for the control of the field cricket (Teleogryllus commodus)

Abstract

The field cricket, Teleogryllus commodus (Walker) is an important pest of black cracking soils of south-eastern mainland Australia and of New Zealand. Insecticidal control was unsatisfactory until dieldrin was introduced. Residue problems associated with the use of dieldrin on pastures led to a revival of investigations into alternative treatments. The low volume concentrate application of technical malathion by aircraft gave rapid and effective control when applied late in the season. As little as 6.5 fl oz of 96 per cent malathion, estimated to cost no more than $1.20 an acre, including application costs, reduced cricket populations by 94-95 per cent two to six days after spraying, providing quick, convenient, and economical control and avoiding undesirable insecticide residues. Further trials will be necessary to determine suitable applications earlier in the season.